How to extract Chinese characters using MSSQL-mysql tutorial

SQL statement for extracting Chinese characters under sqlserver. For more information, see.

SQL statement for extracting Chinese characters under sqlserver. For more information, see.

The code is as follows:
--> Title: generate a sequence number.
--> Author: wufeng4552
--> Date: 09:02:08

If object_id ('dbo. get_china_str ') is not null drop function dbo. get_china_str
Go
Create function dbo. get_china_str
(
@ Str nvarchar (200)
)
Returns nvarchar (200)
As
Begin
Declare @ I int
Set @ I = 1
While @ I <= len (@ str)
Begin
If len (unicode (substring (@ str, @ I, 1) <5
Begin
Set @ str = stuff (@ str, @ I, 1 ,'');
End
Else
Set @ I = @ I + 1;
End
Return @ str
End
Go
Select dbo. get_china_str ')

/*
We are all Chinese, both Chinese descendants and descendants of the Dragon

(A data column is affected)

*/